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Fipronil water dispersible granules and method for manufacturing same

A manufacturing method, the technology of Fipronil, applied in the field of Fipronil water-dispersible granules and its manufacturing, can solve the problems of harming human health, high use cost, environmental pollution, etc., and achieve low environmental pollution and high content of active components , High bactericidal effect

Inactive Publication Date: 2009-09-16
北京绿色农华作物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to develop a high-content, environment-friendly, high-utilization, and easy-to-use Fipronil water-dispersed product in order to overcome the disadvantages of environmental pollution, harm to human health, and high cost of use in the prior art. Granules and formulations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 30% of Fipronil original drug, 3.0% of wetting agent alkylphenol polyoxyethylene ether formaldehyde condensate, 5.0% of dispersant alkylphenol formaldehyde condensate sodium sulfate, 15% of disintegrating agent ammonium sulfate, binder Polyethylene glycol 1.0%, kaolin supplement 100%, mix them according to the general method, after stirring evenly, pulverize by jet mill, then granulate, dry, and sieve to obtain about 30% Fipronil water-dispersible granules. After testing, the active ingredient content is 30.4%, moisture ≦ 2.6%, sieved (through a 75um sieve), suspension rate ≧ 85%, long-lasting foaming (1min) ≦ 10mL, wettability ≦ 1min, dust ≦ 3.0%, accelerated Thermal storage stability is qualified.

Embodiment 2

[0030] Weigh 40% of the original drug of fipronil, 3.0% of sodium lignosulfonate as a wetting agent, 5.0% of formaldehyde condensate of alkylphenol polyoxyethylene ether as a dispersant, 10% of ammonium sulfate as a disintegrating agent, and 10% of a binder polyethylene Glycol 1.0%, kaolin supplement 100%, mix them according to the general method, after stirring evenly, pulverize by jet mill, then granulate, dry, and sieve to obtain about 40% fipronil water dispersible granules. After inspection, the active ingredient content is 40.2%, moisture ≦ 2.3%, sieving (through 75um sieve) ≧ 98%, suspension rate ≧ 90%, long-lasting foaming (1min) ≦ 10mL, wettability ≦ 1min, dust ≦ 3.0 %, the accelerated heat storage stability is qualified.

Embodiment 3

[0032] Weigh 50% of the original drug of fipronil, 4.0% of the wetting agent sodium dodecylbenzene sulfonate, 6.0% of the dispersant alkylphenol polyoxyethylene ether formaldehyde condensate, 10% of the disintegrating agent ammonium sulfate, and Polyethylene glycol 1.0%, kaolin to make up 100%, mix them according to the general method, after stirring evenly, pulverize through a jet mill, then granulate, dry, and sieve to obtain about 50% Fipronil water dispersible granules . After inspection, the active ingredient content is 50.5%, moisture ≦ 2.3%, sieving (through 75um sieve) ≧ 98%, suspension rate ≧ 90%, persistent foaming (1min) ≦ 10mL, wettability ≦ 1min, dust ≦ 3.0 %, the accelerated heat storage stability is qualified.

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Abstract

The invention discloses a pesticide preparation, and in particular relates to fipronil water dispersible granules and a method for manufacturing the same. The fipronil water dispersible granules are in regular or irregular granular forms. The formula of the fipronil water dispersible granules comprises the following components by mass percentage: 30 to 80 percent of fipronil active compound, 2 to10 percent of wetter, 2 to 10 percent of dispersant, 5 to 20 percent of disintegrating agent, 2 to 8 percent of binder and the balance of carrier based on total 100 percent. The components are mixed,uniformly stirred and ground to form concentrated powder; the concentrated powder is uniformly mixed with the binder; the mixture is made into grains; and the grains are dried and filtered by a sieveand the fipronil water dispersible granules are obtained. The water dispersible granules overcome the drawbacks of suspending agents and wettable powder and reduce the using cost for peasants and environmental pollution in processing and using processes. The fipronil water dispersible granules have the advantages of high active ingredient content, little environmental pollution, quick disintegration, good dispersivity, stable heat-storing performance, and the like due to the addition of additives with different ingredients, and have high pest-killing efficiency and high safety during use.

Description

technical field [0001] The invention relates to a pesticide and insecticide, in particular to a fipronil water-dispersible granule and a manufacturing method thereof. technical background [0002] At present, there are many agricultural pesticides, and fipronil is one of them. Fipronil is a new type of benzopyrazole insecticide. Due to its novel structure, unique mechanism of action and high insecticidal activity, it is called a new generation of high-tech insecticide. Currently, Fiproxil has been used in more than 70 countries around the world. Its main features are: 1. Unique insecticidal mechanism. The insecticidal mechanism of Fipronil is to interfere with the normal function of the central nervous system of insects and cause the death of pests. 2. Efficient and broad-spectrum, a large number of test results show that: Fipronil is a broad-spectrum insecticide with good control effect on many pests. It has extremely high activity against pests of Hemiptera, Lepidopter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N43/56A01P7/00
Inventor 李鹏吴俊玲周晨光李凤明陈义明齐正红吴家全周希贵吕飞
Owner 北京绿色农华作物科技有限公司